Submitted on: 12 February 2003.
Revised on: 19 March 2003.
Accepted on: 07 April 2003.
NULL
Submitted on: 07 May 2007.
Revised on: 18 June 2007.
Accepted on: 11 July 2007.
Revista de Comunicacion-Peru---UNIV PIURA
Submitted on: 04 June 2006.
Revised on: 04 July 2006.
Accepted on: 15 July 2006.
NULL
Submitted on: 12 November 2009.
Revised on: 10 December 2009.
Accepted on: 28 December 2009.
NULL
http://reply.papertrans.cn/3/268/26771/26771-15.png
http://reply.papertrans.cn/3/268/26771/26771-16.png
http://reply.papertrans.cn/3/268/26771/26771-17.png
Submitted on: 28 February 2016.
Revised on: 06 March 2016.
Accepted on: 24 March 2016.
Revista de Comunicacion-Peru---UNIV PIURA
Submitted on: 08 January 2009.
Revised on: 21 February 2009.
Accepted on: 08 March 2009.
NULL
Submitted on: 12 September 1998.
Revised on: 29 September 1998.
Accepted on: 06 October 1998.
Revista de Comunicacion-Peru---UNIV PIURA